Roof panel gauge



FIG. 1 is a perspective view showing a new design for a roof panel segment gauge;

FIG. 2 is a front view thereof;

FIG. 3 is a top view thereof;

FIG. 4 is a bottom view thereof;

FIG. 5 is a rear view thereof;

FIG. 6 is a left side view thereof; and,

FIG. 7 is a right side view thereof. 

I claim the ornamental design for a roof panel gauge, as shown and described. 